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Table 5 Results of bivariate analyses for RSI and related conditions (4 outcomes), compared to asymptomatic workers (n = 173)

From: Prevalence and associations of symptoms of upper extremities, repetitive strain injuries (RSI) and 'RSI-like condition'. A cross sectional study of bank workers in Northeast Brazil

 

Symptoms other than RSI

Symptoms

'RSI-like'

RSI

Variables

N = 102/275 N (%)

OR 95% CI

n = 222/395 N (%)

OR 95% CI

n = 118/291 N (%)

OR 95% CI

n = 55/228 N (%)

OR 95% CI

Sex:

        

   Male

40 (39.2)

1*

87 (45.8)

1*

46 (30.9)

1*

18 (14.9)

1*

   Female

62 (60.8)

2.28 (1.38 – 3.76)

135 (65.8)

2.28 (1.52 – 3.43)

72 (50.7)

2.30 (1.43 – 3.72)

37 (3.0)

3.02 (1.60 – 5.74)

Job:

        

   Manager

19 (18.1)

1

32 (42.1)

1†

13 (22.8)

1†

6 (12.0)

1†

   Clerk

31 (30.7)

1.20 (0.60 – 2.39)

81 (57.4)

1.86 (1.04 – 3.29)

50 (45.4)

2.85 (1.40 – 6.28)

28 (31.8)

3.69 (1.35 – 10.09)

   Cashier

41 (40.6)

2.16 (1.09 – 4.28)

82 (65.1)

2.56 (1.40 – 4.67)

39 (47.0)

2.43 (1.20 – 5.65)

18 (29.0)

2.60 (0.92 – 7.38)

   Other

10 (9.1)

1.10 (0.44 – 2.78)

24 (53.3)

1.57 (0.74 – 3.32)

14 (40.0)

1.69 (0.88 – 5.76)

2 (8.7)

0.70 (0.13 – 3.76)

Education:

        

   Up to secondary school

33 (32.4)

1

82 (56.2)

1

48 (42.8)

1

22 (25.5)

1

   University degree

69 (67.8)

1.23 (0.73 – 2.06)

140 (56.2)

1.00 (0.66 – 1.51)

70 (39.1)

1.52 (0.84 – 2.78)

33 (23.2)

1.24 (0.59 – 2.62)

Marital status:

        

   Single

24 (23.5)

1

41 (57.8)

1

16 (34.8)

1

6 (16.7)

1

   Married

58 (56.9)

0.65 (0.35 – 1.22)

139 (55.6)

0.92 (0.54 – 1.56)

80 (41.9)

1.35 (0.69 – 2.64)

42 (27.4)

1.89 (0.73 – 4.87)

   Separated/Divorced

20 (19.6)

0.83 (0.38 – 1.82)

42 (56.8)

1.02 (0.53 – 1.99)

22 (40.7)

1.38 (0.61 – 3.12)

7 (18.0)

1.17 (0.35 – 3.88)

 

Mean Diff (SE)

OR 95%CI

Mean Diff (SE)

OR 95%CI

Mean diff (SE)

OR 95%CI

Mean diff (SE)

OR 95%CI

Age (OR by 5 year age-groups)

1.59 (0.67)

0.75 (0.58 – 0.96)†

1.46 (0.53)

0.77 (0.63 – 0.95)∞

1.34 (0.62)

0.80 (0.62 – 1.02)

0.96 (0.82)

0.82 (0.60 – 1.12)

Time at bank in years

(OR by year worked in bank)

1.29 (0.65)

0.95 (0.91 – 1.00)∞

1.04 (0.51)

0.96 (0.92 – 1.0)

0.89 (0.61)

0.97 (0.92 – 1.01)

0.30 (0.81)

0.99 (0.93 – 1.05)

  1. * p < 0.001, † p < 0.02, ∞ p <= 0.05
  2. 'Symptoms other than RSI" refers to individuals considered to have 'symptoms of upper limbs unlikely to be related to RSI' (n = 102).
  3. The variable 'symptoms' refers to all subjects with symptoms of upper extremities (n = 222).
  4. To be considered as having 'RSI-like condition', positive responses to all 4 screening questions were required (n = 118).
  5. RSI includes confirmed cases of RSI following full clinical assessment (n = 55).
  6. For the variable symptoms, the total sample size of 375 is used as the denominator.
  7. For the other symptom-related variables, the denominator includes 173 cases with no symptoms of upper limbs added to the respective numerator.
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BMC Public Health

ISSN: 1471-2458

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